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  • New item   Electromechanical latch | lock | for parcel lockers | 12VDC | 2A | 73x66x13mm | unlocked when power is applied | steel | black
    New item   Electromechanical latch | lock | for parcel lockers | 12VDC | 2A | 73x66x13mm | unlocked when power is applied | steel | black 1
    New item   Electromechanical latch | lock | for parcel lockers | 12VDC | 2A | 73x66x13mm | unlocked when power is applied | steel | black 2
    New item   Electromechanical latch | lock | for parcel lockers | 12VDC | 2A | 73x66x13mm | unlocked when power is applied | steel | black 3
    New item   Electromechanical latch | lock | for parcel lockers | 12VDC | 2A | 73x66x13mm | unlocked when power is applied | steel | black 4
    New item   Electromechanical latch | lock | for parcel lockers | 12VDC | 2A | 73x66x13mm | unlocked when power is applied | steel | black 5

    Electromechanical latch | lock | for parcel lockers | 12VDC | 2A | 73x66x13mm | unlocked when power is applied | steel | black

    Code: ES-DK203B
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    The electromechanical cabinet latch is designed for parcel lockers, parcel terminals, storage lockers, gyms, schools, vending machines, and other automatically controlled doors. The lock operates on the fail-secure principle – it remains locked without power, and unlocks the locking mechanism when a 12 V DC power pulse is applied. Its reinforced steel construction, up to 150 kg latch holding force, and universal mounting orientation ensure reliable, long-lasting operation in high-use applications. 

  • Product description

    Electromechanical cabinet latch – 12 V DC, 2 A, unlocks when powered, hook resistance up to 150 kg

    Electromechanical cabinet latch is intended for parcel terminals, storage lockers, gym and school lockers, vending machines and other automatically controlled door structures. The lock is operated by an electrical pulse: when power is off, the door remains locked, and when 12 V DC is applied, the internal electromechanical mechanism is activated and the locking hook is released.

    The housing is made of sheet steel, while the main internal mechanism components are made of carbon steel. The reinforced construction, thicker spring and resistance to a pulling load of up to 150 kg allow the lock to be used in more intensively operated locker systems.

    The compact design can be installed regardless of whether the door opens to the left or right. During installation, a mechanical emergency release must be provided so that the locker can be opened in the event of a power failure, controller fault or jammed locking mechanism.

    Operating principle – fail-secure:
    When power is off, the lock remains locked. When 12 V DC power is applied, the locking mechanism is activated and the door is unlocked. In the event of a power failure, the lock does not open automatically.
    Important information about emergency release:
    During installation, access to the mechanical release point must be retained. Because this lock remains locked when power is lost, the locker may not be opened if the power supply is depleted or the control system fails unless a mechanical opening method has been provided.
    Power supply note:
    The specified electrical parameters are 12 V DC, 2 A. The power supply and control output must provide the required voltage and current. The lock must not be connected directly to a 230 V AC mains supply.
    Lock type
    Electromechanical latch
    Operating principle
    Fail-secure
    Power supply
    12 V DC
    Specified current
    2 A
    Material
    Carbon steel
    Surface finish
    Electrophoretic coating
    Suitable door weight
    0.5–4 kg
    Specified hook resistance
    Up to 150 kg

    Electromechanical unlocking

    An electric actuator is installed inside the lock. When it receives a 12 V DC control pulse, it releases the locking hook. The door can then be opened manually or, depending on the locker design and spring tension, may pop slightly forward.

    When power is removed, the lock mechanism returns to the locking position. When the door is closed, the strike or hook pushes the mechanism into the retaining position and the locker locks again.

    Operating sequence:
    1. The door is closed and the locking hook engages.
    2. Without power, the lock remains locked.
    3. The controller briefly applies 12 V DC power.
    4. The electromechanical mechanism releases the hook.
    5. The door is opened, after which the lock prepares for the next locking cycle.

    Fail-secure operating principle

    This lock operates according to the fail-secure principle. This means that if the power supply is interrupted, the locking hook remains engaged and the contents of the locker stay secured.

    This operating principle is suitable for parcel terminals, vending machines, storage lockers and other systems where it is important for the door to remain locked during a power failure.

    Not intended for emergency exit doors:
    This lock is designed for furniture, lockers, terminals and vending machine doors. It must not be used on doors intended for evacuation or room exits where automatic unlocking is required in the event of a power failure.

    Reinforced steel construction

    The outer lock housing is formed from sheet steel, while the main internal components are made of carbon steel. The thicker material and reinforced spring are designed for frequent mechanism movement and repeated door closing.

    The electrophoretic surface coating covers the metal components with an even protective layer and helps reduce the risk of surface corrosion under normal indoor operating conditions.

    Specified hook resistance up to 150 kg

    According to the supplied information, the locking hook can withstand a pulling load of up to 150 kg without obvious permanent deformation. This indicates a reinforced mechanical design suitable for securing locker and vending machine doors.

    The lock is also described as resistant to impact and slipping, helping the hook remain engaged when the door is exposed to vibration or mechanical force.

    Explanation of the load rating:
    The stated 150 kg value describes the locking hook pull test, not the recommended door weight. The suitable door weight is specified separately as 0.5 to 4 kg.
    Actual system resistance:
    The overall load-bearing capacity of the locking system depends not only on the lock, but also on the mating hook, door, hinges, housing, mounting screws and installation base. A weak locker construction may deform before the lock itself.

    Suitable for doors weighing 0.5–4 kg

    The lock is intended for locker and vending machine doors weighing from 0.5 to 4 kg. Door weight is important so that the locking mechanism is not overloaded and the door can open correctly after unlocking.

    If the door is very light, an additional spring or pusher may be required to move it away from the cabinet after unlocking. If the door is too heavy, the full load must not be transferred to the lock hook — the door must be supported by correctly adjusted hinges and structural support points.

    Installation without left- or right-hand restrictions

    The lock does not have a strict left-hand, right-hand, positive or negative installation configuration. It can therefore be adapted to locker doors opening in different directions, provided that the hook and mating component remain correctly aligned.

    The installation position must be selected so that the locking hook moves freely, does not rub against the locker housing and is not continuously subjected to lateral loading.

    Do not install the mechanism under tension:
    The closed door must not push the locking hook sideways. Excessive lateral load may interfere with electrical unlocking, increase the current requirement and accelerate mechanism wear.

    Wide specified temperature range

    According to the supplied information, the lock is designed to operate at ambient temperatures from −40 to +60 °C. This allows it to be considered for unheated indoor spaces, technical cabinets or environments with changing temperatures.

    Power supply and control requirements

    The specified power requirement for the lock is 12 V DC, 2 A . A relay output with suitable capacity, a transistor controller or a dedicated locker control module may be used for control.

    If the controller output cannot directly supply 2 A, a separate relay or power control module must be installed between the controller and the lock. Short-circuit protection is recommended in the power circuit.

    When selecting the power supply, consider:
    • The number of locks that may be unlocked simultaneously.
    • The specified 2 A current for each lock.
    • Cable length and possible voltage drop.
    • The consumption of the controller, indicators and other system components.
    • An additional power reserve.
    Do not connect directly to a low-current controller output:
    If the access-control or locker controller output is intended only for a small signal current, connecting a 2 A load directly may damage the controller.

    Mechanical emergency release

    The lock installation must include a mechanical release point. Through this point, the mechanism can be released using a cable, lever or another method provided by the locker manufacturer.

    Access to the mechanical release must be available only to service personnel, but it must not be covered in a way that prevents its use in an emergency.

    Technical specifications

    Product type Electromechanical hook latch for lockers
    Control type Electric actuator
    Operating principle Fail-secure – locked without power, unlocked when power is applied
    Operating voltage 12 V DC
    Specified operating current 2 A
    Housing material Sheet steel
    Material of internal mechanical components Carbon steel
    Surface finish Electrophoretic paint coating
    Colour Black
    Suitable door weight 0.5–4 kg
    Specified hook pull resistance Up to 150 kg without obvious permanent deformation
    Operating ambient temperature −40...+60 °C
    Installation direction Universal, without left- or right-hand restriction
    Mechanical emergency release option Must be provided during installation
    Application environment For locking lockers, terminals, vending machines and other small doors

    Main features

    • Electromechanical unlocking when 12 V DC is applied.
    • Fail-secure operation – remains locked during a power failure.
    • Specified operating current of 2 A.
    • Reinforced steel housing.
    • Internal carbon steel components.
    • Thicker spring for more frequent use.
    • Electrophoretic protective coating.
    • Specified hook pull resistance up to 150 kg.
    • Resistant to impact and slipping.
    • Suitable for doors weighing 0.5–4 kg.
    • Universal installation direction.
    • Compact construction.
    • Operating temperature −40...+60 °C.
    • Option to provide a mechanical emergency release.

    Applications

    For parcel terminals
    For automatically controlled parcel and goods collection lockers.
    For gym lockers
    For storage locker doors in changing rooms.
    For school lockers
    For student and employee personal-item storage systems.
    For vending machines
    For controlling product, equipment or collection-compartment doors.
    For electronic storage lockers
    For lockers in offices, manufacturing facilities, logistics areas and public premises.

    Installation procedure

    1. Assess the door weight. It must be within the 0.5–4 kg range.
    2. Select the installation location. The lock and mating hook must fit inside the locker.
    3. Check the opening direction. Although the lock is universal, the locking hook must move without lateral load.
    4. Mark the mounting holes. Follow the installation drawing for the specific product.
    5. Secure the lock housing. Use fasteners suitable for the locker material.
    6. Install the mating hook. It must enter the lock retaining mechanism precisely.
    7. Provide a mechanical emergency release. Leave space for a cable, lever or another release solution.
    8. Route the 12 V DC power cables. Select an appropriate cable cross-section.
    9. Connect the control relay or module. Make sure the output can control a 2 A load.
    10. Test unlocking before closing the door. Apply a short power pulse and observe the mechanism.
    11. Adjust the hook position. It must not jam or push the mechanism sideways.
    12. Perform several complete operating cycles. Check closing, locking, electrical unlocking and mechanical unlocking.
    Initial test:
    Before finally closing the locker, verify that both electrical and mechanical emergency unlocking work correctly. Otherwise, an incorrectly installed lock may remain locked without easy access to the internal mechanism.

    Usage and safety recommendations

    • Use only a 12 V DC power supply.
    • Do not connect the lock directly to a 230 V AC supply.
    • Check that the control output can supply 2 A.
    • Do not keep the lock continuously energised unless the permitted power-pulse duration has been confirmed.
    • Always provide a mechanical emergency release.
    • Do not allow the hook to operate under high lateral load.
    • Do not use the lock as a door hinge, support or door closer.
    • Do not install it on emergency exit doors or doors intended for people.
    • Protect the mechanism from water, condensation and dirt.
    • Installation and electrical connection must be performed by a qualified specialist.

    Maintenance

    • Regularly check the alignment of the lock and mating hook.
    • Remove dust and dirt from the retaining mechanism.
    • Check that the mounting screws have not loosened.
    • Monitor the condition of the power cables and connections.
    • Periodically test the mechanical emergency release.
    • Do not use thick lubricants that may retain dust unless permitted by the instructions.
    • If the lock does not unlock, first check the voltage, current, hook load and mechanism alignment.

    FAQ – frequently asked questions

    Is this an electric lock?
    Yes. It is an electromechanical cabinet latch whose mechanism unlocks when 12 V DC power is applied.
    What happens if the power fails?
    The lock remains locked because it operates according to the fail-secure principle.
    How is the lock unlocked?
    A 12 V DC control pulse is applied to the lock, releasing the locking hook.
    Can the lock be powered continuously?
    The supplied information does not specify the permitted duration of continuous power. A short control pulse is recommended.
    What power supply is required?
    A stabilised 12 V DC power supply capable of providing the specified 2 A current and additional reserve is required.
    Can it be connected directly to a controller?
    Only if the controller output is designed for 12 V DC and can control a 2 A load. Otherwise, an intermediate relay or power module is required.
    Is a mechanical emergency release required?
    Yes. A mechanical release point must be provided during installation because the lock remains locked during a power failure.
    What door weight is the lock suitable for?
    The specified suitable door weight is 0.5–4 kg.
    Does 150 kg refer to the door weight?
    No. The 150 kg rating describes the stated resistance of the locking hook to pulling load, not the door weight.
    Is the lock left-handed or right-handed?
    The supplied information specifies a universal installation direction without a strict left- or right-hand version.
    Is it suitable for a parcel terminal?
    Yes. The lock is intended for parcel terminals, parcel lockers and other automatically controlled storage lockers.
    Is it suitable for gym lockers?
    Yes, provided that the door weight and construction meet the lock installation requirements.
    What temperature range can it operate in?
    According to the supplied information, the operating temperature is from −40 to +60 °C.

    Electromechanical hook latch for lockers and vending machines

    The electromechanical lock is intended for automatic locking of parcel terminal, parcel locker, storage locker, gym, school, vending machine and other small doors.

    The lock operates according to the fail-secure principle: without power it remains locked, and when 12 V DC is applied, the internal mechanism releases the locking hook. The specified operating current is 2 A.

    The reinforced steel housing, carbon steel internal components, thicker spring and electrophoretic surface coating are designed for more intensive use. The specified hook pull resistance is up to 150 kg, and the lock is suitable for doors weighing 0.5–4 kg.

    The universal construction can be installed in different directions, but the hook and mating component must be aligned precisely. A mechanical emergency release must be provided during installation.

    Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.

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